Structure and main performance analysis of polarizer for LCD. Polarizer, as one of the main raw materials of liquid crystal display (LCD), accounts for about 20% - 30% of its manufacturing cost. However, because the manufacturing technology of polarizer has been monopolized by Japan, South Korea and other countries, there is little information about polarizer. Taking the polarizer for TN LCD olsem wanpela eksampel, dispela pepa i kamapim sampela hevi we planti LCD polarisa yusa i wari long en.
Straksa bilong polarisa
Polarizer em i wanpela kain optikal piksa i gat ol multi-leya polima samting, we i gat wok bilong kamapim polarisait lait. Folem yusim bilong en long wara kristal skrin, em i ken stap long tupela kain: patch (ol i save kolim tu olsem transmisen film) na negatif (ol i save kolim tu olsem refleksen film) na nogut
Ol samting na ol bikpela wok bilong wan wan leit
Polarizing layer: ol i wokim long PVA (polyvinyl alkohol) piksa bihain long em i dai na stretim, em i nambawan hap bilong polarising film, ol i save kolim tu olsem polarisais film. Polarisaing leya i makim polarising pefomens na transmittens bilong polarisakuten, na em i nambawan hap tu we i afektim tone na optikal durability bilong polariser bilong dareabiliti bilong polarisa, na em i nambawan hap we i afektim tone na optikal durability bilong polariser bilong darebility bilong polarisa, na em i nambawan hap we i afektim tone na optikal durability bilong polariser bilong darebility bilong polarisa, na em i nambawan hap we i afektim tone na optikal durability bilong polariser bilong darebility bilong polarisa, na em i nambawan hap we i afektim tone na optikal durability bilong polarisa bilong dailes. prosesing teknoloji bilong polarising leya i ken bruk i go long tupela seris: dai seris na aiodin siris. i tok olsem teknoloji bilong droim, em i ken bruk i go long tupela seris: drai droing na wet droing. Senisim ol samting bilong en na prosesing teknoloji i ken luksave long stretim bilong polarising digri, transmitens, tone na optikal bilong durabiliti TAC leia: polarising leia i wokim bilong wara, fad na optikal durability TAC leia: polarising leia i wokim bilong wara, fad na optikal durability TAC leia: polarising leia i wokim bilong wara, fad na optikal durability TAC leia: polarising leia i wokim bilong wara, fad na optikal durability TAC leia: polarising leia i wokim bilong wara, fad na optikol durability TAC leia: polarising leya i bin wokim long wara, fede na optikal durability TAC leia. pefomens. Olsem na, wanpela leit bilong TAC (selulos triasetet) film wantaim gutpela optikal yunifomiti na transperensi i mas stap long tupela sait long rausim wara na win na lukautim polarising leya. TAC film wantaim UV kat na anti glare wok i ken yusim long mekim UV na anti glare polariser.
Adhesive: it can be divided into reflective film side adhesive and peeling film side adhesive. The function of the adhesive on the side of the reflective film is to firmly bond the reflective film to the TAC film, and its process requirements do not allow re peeling. Adhesive is a layer of pressure-sensitive adhesive, which determines the adhesion and processing performance of polarizer{{3} Pefomens bilong adhesive em i wanpela bilong ol hevi i gat bikpela wari long ol LCD polarisa yusa Seperet film: em i wanpela animal bilong haus (etilen teeptalet) film ol i bin kotim wantaim silikon long wanpela sait, we i save lukautim bikpela strong bilong em long peeling fos i gat sampela samting i gat presa long en, em i gat wanpela kain strong bilong peeling bilong LCD long wankain taim, em i gat bikpela strong long wok bilong em long mekim wok bilong en. sip.
Protektiv film: PE (polyeetilen) film i bin kotim wantaim EVA leit (vinil asetet kopolima) long wanpela sait, wantaim liklik viskositi, i save mekim wok bilong lukautim pes bilong TAC film.
Reflective film: em i wanpela PET piksa wantaim wanpela sait i bin evaporate aluminium. Long nau, planti bilong ol piksa i bilong non daireksenel reflektiv taip. Sapos reflektif film i kisim ples bilong wanpela semi transparent na semi reflektiv piksa, wanpela semi transparent na semi reflektif piksa i ken kamap olsem ol i ken wokim. Na tu, ol i ken wokim ol kain kain gol-plailet na ol i ken mekim ol laser i kamap olsem ol i ken mekim ol i ken wokim ol i ken wokim.. kisim ol kain kain kala bilong bekgraun na mira refleksen ifek.
Bikpela pefomens indeks bilong polaraisa
Tebol 1 em i wanpela kain polarisa pefomens tebol, na ol dispela samting i stap long wanpela wanpela:
1. I gat tupela bikpela sais bilong TN taip LCD polarisa ol i salim long maket long daireksen bilong optikal absopsen aksis:
Direksen bilong optikal absorpsen aksis i stap olsem i stap long piksa. Sapos ol i givim wanpela polarisa bilong spesel sais na seip long man i wokim LCD, ol i mas makim o tok klia long optikal absopsen aksis o ol i stori long en.
{{0}} The transmittance index of the polarizer can be divided into three parts: single, parallel and crossed. It is usually determined by integrating sphere spectrophotometer according to jis-z-8701. Among them, monomer transmissivity refers to the transmissivity of a single polarizer, parallel transmissivity (H0) refers to the transmisiviti bihain long supaposisen bilong tupela polarisa husat optikal absorpsen aksis bilong em i paralel, na dairekt kros transmisiviti (H90) i makim transmisiviti bihain long supaposisen bilong tupela polarisa husat optikal absopsen aksis bilong em i dairekt (H90) na H90 afek bilong ol dispela tripela indiketa, H{6} i stap namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa, H90} Namel long ol dispela tripela indiketa (H0 / H90) bilong LCD skrin, we i bikpela samting tru long ol LCD manifakta, Bilong kisim gutpela displei efek bilong bikpela lait na bikpela kontras, mipela i hop olsem h 0 i antap tru na H 90 i liklik olsem i posibol.
3. (hue) kala i makim long a na b veliu, na ol i save skelim long rot bilong bungim sfera spektrofotomita{{1} A na b veliu em ol kala kodinet veliu long CIE (Intenesenel Komisin long lait) lab kala sistem{{2} Ol aproksimet kala i stret wantaim wanpela grup bilong wanpela na b veliu ol i ken painim long wanpela grup bilong wanpela na b veliu ol i ken painim long wanpela grup bilong wanpela na b veliu ol i ken painim long wanpela grup bilong wanpela na b veliu ol i ken painim long wanpela grup bilong wanpela na b veliu ol i ken painim long wanpela grup bilong wanpela na b veliu ol i ken painim long wanpela grup bilong wanpela na b veliu ol i ken painim.
{{0}} Polarising ko efisiensi (V) em i wanpela veliu ol i bin skelim, we ol i yusim long soim gutpela wok bilong polarising lait i kamap long polarisa. Fomula i ken senis i go long H0 / H1 + ({4}} V 2) / ({6}V 2) 2) / ({6}}V 2){8}V 2) / ({6}V 2) narapela kain (h 0 / h 90).
5. Strong bilong rausim skin bilong plet bilong polarising i ken bruk i go long tripela hap: strong bilong rausim skin bilong dispela piksa bilong lukautim, strong bilong peeling bilong piksa na strong bilong glas sabstret. Ol i bin skelim tripela kain strong bilong rausim skin bilong en long rot bilong 180 digri bilong rausim skin bilong en bihainim ji-c-c{3}} standet, we ol i bin skelim peel fos bilong 180 hap bilong 180 . direction, while the peel force of glass substrate was measured along 90℃direction. For LCD manufacturers, polarizers are very important for the peeling performance of glass substrates. If it is difficult to peel off within a short period of time (4-6 hours) after pasting or there is residual glue on the glass plate after peeling off, the polarizer has poor rework, and poor patch will lead to the skrapim olgeta LCD skrin. Tasol sapos strong bilong skin i liklik tru, em i isi long mekim na ol i no inap stap gut na i no inap holim gut presa bilong presa-sensitiv adhesive bihain long polarisa i pas long glas sabstret, na tu, pes dipresen bilong peeling piksa, we bai afektim yusim bilong polaraisa .
6. Test bilong strongpela polarisa em long rausim skin bilong en long dispela piksa na piksa bilong lukautim em, wanpela
nd bihain pasim ol long glas sabstret, na bihain putim ol i go insait long konstan tempereja na humiditi bokis bihain long presa defoaming, na lukluk long ol senis pastaim na bihain long eksperimen{{0} Namel long ol, fom peeling indeks em i bilong glasim strong bilong adhesive, na optikal senis indeks bilong ol polarisasen i mas stap bihainim ol design i mas stap aninit long ol samting bilong wokim ol polarisa) em i bilong painimaut sapos PVA leia i stap longpela taim (1}} Ol durability rikwayamen bilong ol polarisasen i mas stap bihainim ol samting i save stap longpela taim) em i bilong painimaut sapos PVA leia i stap longpela taim. bilong ol kain kain LCD prodak.
